(PHP 4 >= 4.2.0, PHP 5, PHP 7)
floatval — 锟斤拷取锟斤拷锟斤拷锟侥革拷锟斤拷值
锟斤拷锟截憋拷锟斤拷 var
锟斤拷 float 锟斤拷值锟斤拷
var 锟斤拷锟斤拷锟斤拷锟轿何憋拷锟斤拷锟斤拷锟酵★拷锟姐不锟杰斤拷
floatval() 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
<?php
$var = '122.34343The';
$float_value_of_var = floatval ($var);
print $float_value_of_var; // 锟斤拷印锟斤拷 122.34343
?>
锟轿硷拷 intval()锟斤拷strval()锟斤拷settype() 锟斤拷 锟斤拷锟斤拷戏锟斤拷锟斤拷